# NTSB investigations: Cessna 172RG: Landing gear collapse

NTSB aviation accident and incident investigations since 1962: the probable cause, findings, aircraft, crew, weather and docket of each, linked to the FAA registry and the FAA’s own reports.

## Latest cases

- [NTSB CEN24LA211](https://openairdocs.org/ntsb/CEN24LA211.md): Cessna 172RG · Chandeleur Island, LA · Accident · No injuries · Class 3 · Limited · Final report · May 22, 2024 · N751DW · Substantial damage
  > A fatigue failure of the engine oil pressure line, which resulted in the loss of engine oil during the flight and subsequent damage to the nose landing gear support structure during the precautionary landing.
- [NTSB ERA22LA183](https://openairdocs.org/ntsb/ERA22LA183.md): Cessna 172RG · Waterville, ME · Accident · No injuries · Class 4 · Limited · Final report · Apr 6, 2022 · N9440D · Substantial damage
  > The student pilot’s incorrect landing flare, which resulted in a hard bounced landing and nose landing gear collapse.
- [NTSB GAA22WA304](https://openairdocs.org/ntsb/GAA22WA304.md): Cessna 172RG · Paderborn, Germany · Accident · No injuries · Class 5 · Foreign · Feb 12, 2022 · N16ED · Substantial damage
- [NTSB ERA21LA219](https://openairdocs.org/ntsb/ERA21LA219.md): Cessna 172RG · Miami, FL · Accident · No injuries · Class 4 · Limited · Final report · May 8, 2021 · N9795B · Substantial damage
  > The collapse of the left main landing gear for reasons that could not be determined.
- [NTSB CEN20CA416](https://openairdocs.org/ntsb/CEN20CA416.md): Cessna 172RG · Lafayette, IN · Accident · No injuries · Class 4 · Data collection · Final report · Sep 21, 2020 · N6330V · Substantial damage
  > The separation failure of a landing gear system hydraulic line and its compression fitting during cruise flight, which resulted in a partial gear up landing.
- [NTSB ERA18LA067](https://openairdocs.org/ntsb/ERA18LA067.md): Cessna 172RG · Martinsburg, WV · Accident · No injuries · Limited investigation · Final report · Jan 21, 2018 · N9415B · Substantial damage
  > A hydraulic leak in the right main landing gear actuator, which resulted in the main landing gear not extending.
- [NTSB ANC18LA009](https://openairdocs.org/ntsb/ANC18LA009.md): Cessna 172RG · Opa Locka, FL · Accident · No injuries · Limited investigation · Final report · Nov 16, 2017 · N6102R · Substantial damage
  > A failure of the airplane 's electrical system, which led to the failure of the landing gear system, for reasons that could not be determined because postaccident examination and testing revealed no mechanical anomalies that would have precluded normal…
- [NTSB GAA18CA013](https://openairdocs.org/ntsb/GAA18CA013.md): Cessna 172RG · Auburn, WA · Accident · No injuries · Data collection · Final report · Oct 15, 2017 · N5159U · Substantial damage
  > The failure of the right main landing gear for reasons that could not be determined because postaccident examination did not reveal any anomalies that would have precluded normal operation.
- [NTSB CEN17IA155](https://openairdocs.org/ntsb/CEN17IA155.md): Cessna 172RG · Greeley, CO · Incident · No injuries · Incident investigation · Final report · Mar 20, 2017 · N6402V · Minor damage
  > Failure of the left main landing gear actuator assembly, which resulted in an inability to extend the left main landing gear.
- [NTSB ERA11LA231](https://openairdocs.org/ntsb/ERA11LA231.md): Cessna 172RG · Okeechobee, FL · Accident · No injuries · Limited investigation · Final report · Apr 6, 2011 · N5284V · Substantial damage
  > The failure of the main landing gear to lock in the extended position for undetermined reasons and both pilots’ failure to ensure that the landing gear was down and locked prior to landing.
- [NTSB MIA08LA053](https://openairdocs.org/ntsb/MIA08LA053.md): Cessna C-172RG · Chamblee, GA · Accident · No injuries · Limited investigation · Final report · Feb 7, 2008 · N6562V · Substantial damage
  > A cracked nose gear actuator o-ring resulting in hydraulic fluid exhaustion, and collapse of the main gear.

## The whole list in SQL

Runs in DuckDB 1.2 or later on the release's Parquet files over HTTPS:

```sql
SELECT c."ntsbNumber", c."eventDate", c."eventType", c."eventCity", c."eventStateOrRegion", a.n_number, a."aircraftMake", a."aircraftModel", c."highestInjuryLevel", c."totalFatal", c."completionStatus", c.report_url
FROM 'https://openairdocs.org/data/latest/ntsb_case_detail.parquet' c LEFT JOIN 'https://openairdocs.org/data/latest/ntsb_aircrafts.parquet' a ON a.case_mkey = c."mKey" AND a.position = 1
WHERE c."mKey" IN (SELECT x.case_mkey FROM 'https://openairdocs.org/data/latest/ntsb_aircrafts.parquet' x WHERE x.aircraft_model_code IN ('2072438')
    AND EXISTS (SELECT 1 FROM 'https://openairdocs.org/data/latest/ntsb_events.parquet' s WHERE s.case_mkey = x.case_mkey AND s.aircrafts_position = x.position AND s."tier2Number" = '094' AND s.case_mkey IN (SELECT case_mkey FROM 'https://openairdocs.org/data/latest/ntsb_events.parquet' WHERE "isDefiningEvent")))
ORDER BY c."eventDate" DESC, c."ntsbNumber" DESC
```

This list as a web page: https://openairdocs.org/ntsb-events/094/sequence?model=2072438

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